This study is designed to support the assessment of Type 2 (T2) biomarkers in asthma in primary care and community specialty practices. To assess T2 biomarkers, individuals will be required to complete a breath test for fractional exhaled nitric oxide (FeNO) and consent to a review of their medical records. Asthma often goes undetected in primary care and community settings, and through this study the researchers hope to optimize referral pathways to care.
Study Type
OBSERVATIONAL
Enrollment
200
Fractional Exhaled Nitric Oxide (FeNO) test breathing test that measures the amount of nitric oxide in exhaled breath to detect airway inflammation, aiding in the diagnosis and management of asthma
Mount Sinai Health System
New York, New York, United States
The proportion of patients with FeNO ≥ 25 ppb
The proportion of patients with FeNO ≥ 25 ppb will be measured by using a hand-held portable machine at a standard flow rate of 50 mL/s. FeNO levels serve as a biomarker for Type 2 airway inflammation.
Time frame: Day 1
Asthma Control Test (ACT) Score
Baseline Asthma Control Test (ACT) is a tool for identifying those with poorly controlled asthma. Baseline ACT is scored on a 5-point scale (for symptoms and activities: 1=all the time to 5= not at all; for asthma control rating: 1=not controlled at all to 5=completely controlled). The scores range from 5 (poor control of asthma) to 25 (complete control of asthma), with higher scores reflecting greater asthma control. An ACT score \>19 indicates well-controlled asthma.
Time frame: Day 1
The proportion of patients with a historical blood eosinophil count ≥ 150 cells/μL
The proportion of patients with a historical blood eosinophil count ≥ 150 cells/μL. An eosinophil count is blood test that measures the number of eosinophils, a type of white blood cell,
Time frame: Day 1
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